Do People Who Work For The Cruise Lines (not On Board) Get Discounts On Cruises?

People who work at the corporate office or in reservations, for example!

I Am Going On A Cruise I Already Booked And Paid For I Am Looking For On Board Discounts?

Are there any websites etc. or travel clubs that I can get onboard credits by joining? the cruise itself was around 1800 for two people already so I would love any discounts anyone knows about.